Looking for some advice on digital camera to purchase. I'm looking for something compact, with good picture quality, in the 4 megapixel range. A couple of camera's that jump out a me are the Nikon Coolpix and the Canon Elph. I have a few questions, any help would be appreciated...

1) Does anyone have comments on picture quality from the Coolpix 4100? How does it compare with the picture quality from the 4200?

2) Any recomendations on Coolpix vs. Elph?

3) What are a couple other models by other manufacturers that would fit into the 4megapixel / compact size category?